Terraform Scenario Questions

Scenario 1 : Terraform Migration of AWS Resource

Import Block: Add the import block in main.tf to specify the EC2 resource ID and target resource name:
```
  import {
    id = "instance ID"
    to = aws_instance.example
  }
```
Generate Resource Configuration: Run the command to fetch the resource configuration:
```
  terraform plan -generate-config-out=generated_resources.tf
```
Copy Code: Copy the generated resource block from generated_resources.tf to main.tf.
Cleanup: Delete generated_resources.tf as it is no longer needed.

Run the import command to bring the resource into Terraform state:
```
  terraform import aws_instance.example <instance ID>
```
Result: The resource data is imported into the Terraform state file, ensuring the state matches the actual resource.

Terraform doesn't automatically detect manual changes made directly in the AWS cloud.

Solution 1: Use a Cron Job to Refresh Terraform State

Set up a cron job to periodically run terraform refresh, which updates the Terraform state with the latest changes in the cloud.

Solution 2: Use Audit Logs or Event Notifications

Audit Logs: Enable AWS CloudTrail to log and monitor all changes.
AWS Lambda/Notification: Use AWS Lambda functions or event notifications to alert or trigger Terraform updates when manual changes happen by IAM users.